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(#M40025871) SSC QUESTION SSC-CGL quant Keep an EYE

By selling 100 oranges, a vendor gains
the selling price of 20 oranges. His gain
percent is

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(#M40029688) GATE QUESTION GATE-CS Keep an EYE

On a non-pipe lined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory.
Initialize the address register
Initialize the count to 500 LOOP:
Load a byte from device Store in memory at address given by address register
Increment the address register Decrement the count
If count != 0 go to LOOP
Assume that each statement in this program is equivalent to a machine
instruction which takes one clock cycle to execute if it is a non-load/store
instruction. The load-store instructions take two clock cycles to execute.
The designer of the system also has an alternate approach of using the DMA
controller to implement the same transfer. The DMA controller requires 20 clock
cycles for initialization and other overheads. Each DMA transfer cycle takes two
clock cycles to transfer one byte of data from the device to the memory.
What is the approximate speedup when the DMA controller based design is used
in place of the interrupt driven program based input-output?
option
(A) 3.4
(B) 4.4
(C) 5.1
(D) 6.7

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(#M40029692) GATE QUESTION GATE-CS Keep an EYE

Which data structure in a compiler is used for managing information about variables and their attributes?
(A) Abstract syntax tree
(B) Symbol table
(C) Semantic stack
(D) Parse table

Asked In Gate Rats (12 years ago)

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(#M40029632) GATE QUESTION GATE - CS Keep an EYE

Consider a hard disk with 16 recording surfaces (0 15) having 16384 cylinders (0 16383) and each cylinder contains 64 sectors (0 63). Data storage capacity in each sector is 512 bytes. Data are organized cylinder wise and the addressing format is . A file of size 42797 KB is stored in the disk and the starting disk location of the file is . What is the cylinder number of the last sector of the file, if it is stored in a contiguous manner?

Option
(A) 1281
(B) 1282
(C) 1283
(D) 1284

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(#M40025756) SSC QUESTION CGL Tier 2 Quant Keep an EYE

A man had a certain amount with him. He spent 20% of that to buy an article and 5% of the remaining on transport. Then he gifted Rs. 120. If he is left with Rs. 1,400, the amount he spent on transport is

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(#M40028978) ACIO QUESTION IB-ACIO 2012 Keep an EYE

What is the present permissible power density value for mobile towers operating at 1800 MHz?
(i) 4.5 watt/metre
(ii) 9 watt/metre
(iii) 13.5 watt/metre
(iv) 18 watt/metre

Asked In ACIO Rats (12 years ago)

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(#M40026242) SSC QUESTION CGL Reasoning Keep an EYE

In a survey, 70% of those surveyed owned a car and 75% of those surveyed owned a TV. If 55% owned both a car and a TV. What percent of those surveyed did not own either a car or a TV?

Asked In SSC Rats (12 years ago)

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(#M40029689) GATE QUESTION GATE-CS Keep an EYE

Consider a database table T containing two columns X and Y each of type integer. After the creation of the table, one record (X= 1, Y=l) is inserted in the table. Let MX and MY denote the respective maximum values of X and Y among all records in the table at any point in time. Using MX and MY, new records are inserted in the table 128 times with X and Y values being MX+1, 2*MY+1 respectively. It may be noted that each time after the insertion, values of MX and MY change. What will be the output of the following SQL query after the steps mentioned above are carried out? SELECT Y FROM T WHERE X=7;
option
(A) 127
(B) 255
(C) 129
(D) 257

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(#M40025988) SSC QUESTION CGL quant Keep an EYE

Walking at 5 km/hr a student reaches his school from his house 15 minutes early and walking at 3 km/hr he is late by 9 minutes. What is the distance between his school and his house?

Asked In SSC Rats (12 years ago)

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(#M40029690) GATE QUESTION GATE-CS Keep an EYE

Consider the following table of arrival time and burst time for three processes P0, P1 and P2. Process Arrival time Burst Time
P0 0 ms 9 ms
P1 1 ms 4ms
P2 2 ms 9ms
The pre-emptive shortest job first scheduling algorithm is used. Scheduling is carried out only at arrival or completion of processes. What is the average waiting time for the three processes?
option
(A) 5.0 ms
(B) 4.33 ms
(C) 6.33 ms
(D) 7.33 ms

Asked In Gate Rats (12 years ago)

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